package com.hzncc.scaffold.utils;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.json.JsonReadFeature;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.json.JsonMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.fasterxml.jackson.databind.type.MapType;
import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.module.paramnames.ParameterNamesModule;
import com.google.common.collect.Sets;
import com.hzncc.scaffold.exception.BaseException;
import com.hzncc.scaffold.exception.JacksonException;
import org.apache.commons.lang3.BooleanUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.*;
import java.lang.reflect.Type;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.*;

/**
 * jackson工具类
 *
 * @author lqs
 * @date 2022/3/19
 * @see <a href="https://github.com/duanxinyuan/json-utils">https://github.com/duanxinyuan/json-utils</a>
 */
public class JacksonUtil {
  private static final Logger LOG = LoggerFactory.getLogger(JacksonUtil.class);
  private static final Set<JsonReadFeature> JSON_READ_FEATURES_ENABLED = Sets.newHashSet(
      //允许在JSON中使用Java注释
      JsonReadFeature.ALLOW_JAVA_COMMENTS,
      //允许 json 存在没用双引号括起来的 field
      JsonReadFeature.ALLOW_UNQUOTED_FIELD_NAMES,
      //允许 json 存在使用单引号括起来的 field
      JsonReadFeature.ALLOW_SINGLE_QUOTES,
      //允许 json 存在没用引号括起来的 ascii 控制字符
      JsonReadFeature.ALLOW_UNESCAPED_CONTROL_CHARS,
      //允许 json number 类型的数存在前导 0 (例: 0001)
      JsonReadFeature.ALLOW_LEADING_ZEROS_FOR_NUMBERS,
      //允许 json 存在 NaN, INF, -INF 作为 number 类型
      JsonReadFeature.ALLOW_NON_NUMERIC_NUMBERS,
      //允许 只有Key没有Value的情况
      JsonReadFeature.ALLOW_MISSING_VALUES,
      //允许数组json的结尾多逗号
      JsonReadFeature.ALLOW_TRAILING_COMMA
  );
  private static ObjectMapper mapper;

  static {
    try {
      //初始化
      mapper = initMapper();
    } catch (Exception e) {
      LOG.error("jackson config error", e);
    }
  }

  public static ObjectMapper initMapper() {
    JsonMapper.Builder builder = JsonMapper.builder().enable(JSON_READ_FEATURES_ENABLED.toArray(new JsonReadFeature[0]));
    return initMapperConfig(builder.build());
  }

  public static ObjectMapper initMapperConfig(ObjectMapper objectMapper) {
    String dateTimeFormat = "yyyy-MM-dd HH:mm:ss";
    objectMapper.setDateFormat(new SimpleDateFormat(dateTimeFormat));
    //配置序列化级别
    objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
    //配置JSON缩进支持
    objectMapper.configure(SerializationFeature.INDENT_OUTPUT, false);
    //允许单个数值当做数组处理
    objectMapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
    //禁止重复键, 抛出异常
    objectMapper.enable(DeserializationFeature.FAIL_ON_READING_DUP_TREE_KEY);
    //禁止使用int代表Enum的order()來反序列化Enum, 抛出异常
    objectMapper.enable(DeserializationFeature.FAIL_ON_NUMBERS_FOR_ENUMS);
    //有属性不能映射的时候不报错
    objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    //对象为空时不抛异常
    objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
    //时间格式
    objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    //允许未知字段
    objectMapper.enable(JsonGenerator.Feature.IGNORE_UNKNOWN);
    //序列化BigDecimal时之间输出原始数字还是科学计数, 默认false, 即是否以toPlainString()科学计数方式来输出
    objectMapper.enable(JsonGenerator.Feature.WRITE_BIGDECIMAL_AS_PLAIN);
    //识别Java8时间
    objectMapper.registerModule(new ParameterNamesModule());
    objectMapper.registerModule(new Jdk8Module());
    JavaTimeModule javaTimeModule = new JavaTimeModule();
    javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(dateTimeFormat)))
        .addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(dateTimeFormat)));
    objectMapper.registerModule(javaTimeModule);
    //识别Guava包的类
    //objectMapper.registerModule(new GuavaModule());
    return objectMapper;
  }

  public static ObjectMapper getObjectMapper() {
    return mapper;
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(URL url, Class<V> type) {
    try {
      return mapper.readValue(url, type);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, url: {}, type: {}", url.getPath(), type, e);
    }
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(URL url, TypeReference<V> type) {
    try {
      return mapper.readValue(url, type);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, url: {}, type: {}", url.getPath(), type, e);
    }
  }

  /**
   * JSON反序列化（List）
   */
  public static <V> List<V> fromList(URL url, Class<V> type) {
    try {
      CollectionType collectionType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, type);
      return mapper.readValue(url, collectionType);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, url: {}, type: {}", url.getPath(), type, e);
    }
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(InputStream inputStream, Class<V> type) {
    try {
      return mapper.readValue(inputStream, type);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, type: {}", type, e);
    }
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(InputStream inputStream, TypeReference<V> type) {
    try {
      return mapper.readValue(inputStream, type);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, type: {}", type, e);
    }
  }

  /**
   * JSON反序列化（List）
   */
  public static <V> List<V> fromList(InputStream inputStream, Class<V> type) {
    try {
      CollectionType collectionType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, type);
      return mapper.readValue(inputStream, collectionType);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, type: {}", type, e);
    }
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(File file, Class<V> type) {
    try {
      return mapper.readValue(file, type);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, file path: {}, type: {}", file.getPath(), type, e);
    }
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(File file, TypeReference<V> type) {
    try {
      return mapper.readValue(file, type);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, file path: {}, type: {}", file.getPath(), type, e);
    }
  }

  /**
   * JSON反序列化（List）
   */
  public static <V> List<V> fromList(File file, Class<V> type) {
    try {
      CollectionType collectionType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, type);
      return mapper.readValue(file, collectionType);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, file path: {}, type: {}", file.getPath(), type, e);
    }
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(String json, Class<V> type) {
    return from(json, (Type) type);
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(String json, TypeReference<V> type) {
    return from(json, type.getType());
  }

  /**
   * JSON反序列化
   */
  public static <V> V from(String json, Type type) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      JavaType javaType = mapper.getTypeFactory().constructType(type);
      return mapper.readValue(json, javaType);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, json: {}, type: {}", json, type, e);
    }
  }

  /**
   * JSON反序列化（List）
   */
  public static <V> List<V> fromList(String json, Class<V> type) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      CollectionType collectionType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, type);
      return mapper.readValue(json, collectionType);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, json: {}, type: {}", json, type, e);
    }
  }

  /**
   * JSON反序列化（Map）
   */
  public static Map<String, Object> fromMap(String json) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      MapType mapType = mapper.getTypeFactory().constructMapType(HashMap.class, String.class, Object.class);
      return mapper.readValue(json, mapType);
    } catch (IOException e) {
      throw new JacksonException("jackson from error, json: {}, type: {}", json, e);
    }
  }

  /**
   * 序列化为JSON
   */
  public static <V> String to(List<V> list) {
    try {
      return mapper.writeValueAsString(list);
    } catch (JsonProcessingException e) {
      throw new JacksonException("jackson to error, data: {}", list, e);
    }
  }

  /**
   * 序列化为JSON
   */
  public static <V> String to(V v) {
    try {
      return mapper.writeValueAsString(v);
    } catch (JsonProcessingException e) {
      throw new JacksonException("jackson to error, data: {}", v, e);
    }
  }

  /**
   * 序列化为JSON
   */
  public static <V> void toFile(String path, List<V> list) {
    try (Writer writer = new FileWriter(new File(path), true)) {
      mapper.writer().writeValues(writer).writeAll(list);
    } catch (Exception e) {
      throw new JacksonException("jackson to file error, path: {}, list: {}", path, list, e);
    }
  }

  /**
   * 序列化为JSON
   */
  public static <V> void toFile(String path, V v) {
    try (Writer writer = new FileWriter(new File(path), true)) {
      mapper.writer().writeValues(writer).write(v);
    } catch (Exception e) {
      throw new JacksonException("jackson to file error, path: {}, data: {}", path, v, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return String，默认为 null
   */
  public static String getAsString(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return null;
      }
      return getAsString(jsonNode);
    } catch (Exception e) {
      throw new JacksonException("jackson get string error, json: {}, key: {}", json, key, e);
    }
  }

  private static String getAsString(JsonNode jsonNode) {
    return jsonNode.isTextual() ? jsonNode.textValue() : jsonNode.toString();
  }

  /**
   * 从json串中获取某个字段
   *
   * @return int，默认为 0
   */
  public static int getAsInt(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return 0;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return 0;
      }
      return jsonNode.isInt() ? jsonNode.intValue() : Integer.parseInt(getAsString(jsonNode));
    } catch (Exception e) {
      throw new JacksonException("jackson get int error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return long，默认为 0
   */
  public static long getAsLong(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return 0L;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return 0L;
      }
      return jsonNode.isLong() ? jsonNode.longValue() : Long.parseLong(getAsString(jsonNode));
    } catch (Exception e) {
      throw new JacksonException("jackson get long error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return double，默认为 0.0
   */
  public static double getAsDouble(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return 0.0;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return 0.0;
      }
      return jsonNode.isDouble() ? jsonNode.doubleValue() : Double.parseDouble(getAsString(jsonNode));
    } catch (Exception e) {
      throw new JacksonException("jackson get double error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return BigInteger，默认为 0.0
   */
  public static BigInteger getAsBigInteger(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return new BigInteger(String.valueOf(0.00));
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return new BigInteger(String.valueOf(0.00));
      }
      return jsonNode.isBigInteger() ? jsonNode.bigIntegerValue() : new BigInteger(getAsString(jsonNode));
    } catch (Exception e) {
      throw new JacksonException("jackson get big integer error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return BigDecimal，默认为 0.00
   */
  public static BigDecimal getAsBigDecimal(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return new BigDecimal("0.00");
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return new BigDecimal("0.00");
      }
      return jsonNode.isBigDecimal() ? jsonNode.decimalValue() : new BigDecimal(getAsString(jsonNode));
    } catch (Exception e) {
      throw new JacksonException("jackson get big decimal error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return boolean, 默认为false
   */
  public static boolean getAsBoolean(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return false;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return false;
      }
      if (jsonNode.isBoolean()) {
        return jsonNode.booleanValue();
      } else {
        if (jsonNode.isTextual()) {
          String textValue = jsonNode.textValue();
          if ("1".equals(textValue)) {
            return true;
          } else {
            return BooleanUtils.toBoolean(textValue);
          }
        } else {//number
          return BooleanUtils.toBoolean(jsonNode.intValue());
        }
      }
    } catch (Exception e) {
      throw new JacksonException("jackson get boolean error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return byte[], 默认为 null
   */
  public static byte[] getAsBytes(String json, String key) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return null;
      }
      return jsonNode.isBinary() ? jsonNode.binaryValue() : getAsString(jsonNode).getBytes();
    } catch (Exception e) {
      throw new JacksonException("jackson get byte error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return object, 默认为 null
   */
  public static <V> V getAsObject(String json, String key, Class<V> type) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return null;
      }
      JavaType javaType = mapper.getTypeFactory().constructType(type);
      return from(getAsString(jsonNode), javaType);
    } catch (Exception e) {
      throw new JacksonException("jackson get list error, json: {}, key: {}, type: {}", json, key, type, e);
    }
  }


  /**
   * 从json串中获取某个字段
   *
   * @return list, 默认为 null
   */
  public static <V> List<V> getAsList(String json, String key, Class<V> type) {
    if (StringUtils.isEmpty(json)) {
      return null;
    }
    try {
      JsonNode jsonNode = getAsJsonObject(json, key);
      if (null == jsonNode) {
        return null;
      }
      CollectionType collectionType = mapper.getTypeFactory().constructCollectionType(ArrayList.class, type);
      return from(getAsString(jsonNode), collectionType);
    } catch (Exception e) {
      throw new JacksonException("jackson get list error, json: {}, key: {}, type: {}", json, key, type, e);
    }
  }

  /**
   * 从json串中获取某个字段
   *
   * @return JsonNode, 默认为 null
   */
  public static JsonNode getAsJsonObject(String json, String key) {
    try {
      JsonNode node = mapper.readTree(json);
      if (null == node) {
        return null;
      }
      return node.get(key);
    } catch (IOException e) {
      throw new JacksonException("jackson get object from json error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 向json中添加属性
   *
   * @return json
   */
  public static <V> String add(String json, String key, V value) {
    try {
      JsonNode node = mapper.readTree(json);
      add(node, key, value);
      return node.toString();
    } catch (IOException e) {
      throw new JacksonException("jackson add error, json: {}, key: {}, value: {}", json, key, value, e);
    }
  }

  /**
   * 向json中添加属性
   */
  private static <V> void add(JsonNode jsonNode, String key, V value) {
    if (value instanceof String) {
      ((ObjectNode) jsonNode).put(key, (String) value);
    } else if (value instanceof Short) {
      ((ObjectNode) jsonNode).put(key, (Short) value);
    } else if (value instanceof Integer) {
      ((ObjectNode) jsonNode).put(key, (Integer) value);
    } else if (value instanceof Long) {
      ((ObjectNode) jsonNode).put(key, (Long) value);
    } else if (value instanceof Float) {
      ((ObjectNode) jsonNode).put(key, (Float) value);
    } else if (value instanceof Double) {
      ((ObjectNode) jsonNode).put(key, (Double) value);
    } else if (value instanceof BigDecimal) {
      ((ObjectNode) jsonNode).put(key, (BigDecimal) value);
    } else if (value instanceof BigInteger) {
      ((ObjectNode) jsonNode).put(key, (BigInteger) value);
    } else if (value instanceof Boolean) {
      ((ObjectNode) jsonNode).put(key, (Boolean) value);
    } else if (value instanceof byte[]) {
      ((ObjectNode) jsonNode).put(key, (byte[]) value);
    } else {
      ((ObjectNode) jsonNode).put(key, to(value));
    }
  }

  /**
   * 除去json中的某个属性
   *
   * @return json
   */
  public static String remove(String json, String key) {
    try {
      JsonNode node = mapper.readTree(json);
      ((ObjectNode) node).remove(key);
      return node.toString();
    } catch (IOException e) {
      throw new JacksonException("jackson remove error, json: {}, key: {}", json, key, e);
    }
  }

  /**
   * 修改json中的属性
   */
  public static <V> String update(String json, String key, V value) {
    try {
      JsonNode node = mapper.readTree(json);
      ((ObjectNode) node).remove(key);
      add(node, key, value);
      return node.toString();
    } catch (IOException e) {
      throw new JacksonException("jackson update error, json: {}, key: {}, value: {}", json, key, value, e);
    }
  }

  /**
   * 格式化Json(美化)
   *
   * @return json
   */
  public static String format(String json) {
    try {
      JsonNode node = mapper.readTree(json);
      return mapper.writerWithDefaultPrettyPrinter().writeValueAsString(node);
    } catch (IOException e) {
      throw new JacksonException("jackson format json error, json: {}", json, e);
    }
  }

  /**
   * 判断字符串是否是json
   *
   * @return json
   */
  public static boolean isJson(String json) {
    try {
      mapper.readTree(json);
      return true;
    } catch (Exception e) {
      return false;
    }
  }

  //==============================自己扩展一下==============================

  /**
   * 序列化为JSON,失败抛异常
   */
  public static <V> String to(V v, BaseException be) {
    try {
      return mapper.writeValueAsString(v);
    } catch (JsonProcessingException e) {
      throw be;
    }
  }

}
